It was actually very lucky that this was, in general, a non-violent blockade. (Although that may change, and the Coutts weaponry was an exception).
If this was a group of terrorizers who wanted to actually take over Parliament by force, they likely would have done so quite easily.
Hopefully there will be a Royal Commission on the failures of what happened. The RCMP failed, Ottawa Police failed, and CSIS failed.
The Provincial police force was completely useless.
The feds waited way too long before taking over the authority to police this.